CN208547256U - Preheating furnace on sintering machine machine - Google Patents
Preheating furnace on sintering machine machine Download PDFInfo
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- CN208547256U CN208547256U CN201821031038.5U CN201821031038U CN208547256U CN 208547256 U CN208547256 U CN 208547256U CN 201821031038 U CN201821031038 U CN 201821031038U CN 208547256 U CN208547256 U CN 208547256U
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Abstract
The utility model discloses preheating furnaces on a kind of sintering machine machine, including furnace body, heat supply burner and preheater, it is equipped in the furnace body and keeps off fiery current stabilization wall, furnace interior is divided into combustion chamber and preheating chamber by the fiery current stabilization wall of the gear, the heat supply burner is installed in combustion chamber, the preheater is installed in preheating chamber, described to keep off fiery current stabilization wall equipped with multiple current stabilization holes that the indoor high-temperature flue gas that burns is imported to preheating chamber.On the sintering machine machine preheating furnace have the advantages that can enhanced heat transfer effect, reduce stop production trimming the frequency, improve overall operation rate.
Description
Technical field
The utility model relates to preheating furnaces on a kind of sintering equipment more particularly to a kind of sintering machine machine.
Background technique
Sintering process is the key link smelted iron in process, and principle is by various powdery iron-containing raw materials, and supplying is suitable
The fuel and flux of amount, are added suitable water, make material that a series of physical occur on agglomerating plant with after pelletizing through mixing
Variation is learned, sintering is blocking, so that being sent to blast furnace carries out the next step.
Igniting is the core procedure in sintering process, and principle is that will be laid on the sintering machine trolley using thermal-flame
Contained solid fuel is lighted in mixture charge level, forms a combustion zone, and with the gradually Forward of trolley, combustion zone is negative in exhausting
It is also gradually moved down under the action of pressure, is finally completed the sintering process of the entire trolley bed of material.
Ignition furnace is the facilities and equipments of lighting up procedure, and conventional ignition furnace mixes in burner by common air with coal gas
Burning is sprayed, but when using low-heat value gas (such as blast furnace gas) igniting production, is reached needed for sintering ignition to ask in furnace
1250 DEG C of the temperature wanted usually improves furnace heat in the form of by ignition media preheating.At present on the market using more
Preheated form have double three kinds of the preheatings of the preheating of coal gas list, air single-preheating and space gas, different according to field condition can freely select
Select preheated form.
As shown in Figure 1, preheating furnace 4 is the facilities and equipments of preheating step, when production its installation site be against ignition furnace 1 simultaneously
Positioned at 1 rear of ignition furnace (2 traffic direction of sintering pallet is as shown by the arrows in Figure 1).The working principle of preheating furnace is using low
The high-temperature flue gas that calorific value of gas is generated in preheating furnace burning Indoor Combustion, is heated common to pre- thermal medium (air and coal gas)
It is used to produce to certain temperature (100-500 DEG C), then by medium introducing ignition furnace ignition system.In general, preheating furnace point
For pre-heated two major classes under pre-heated on machine and machine, expect since machine above formula cost of manufacture is lower, and after sintering ignition capable of being utilized
The radiations heat energy in face, therefore market acceptance is higher.
Preheat furnace apparatus on sintering machine machine under the prior art, structure is as shown in Figure 2: preheating furnace apparatus by furnace body 41,
Heat supply burner 42, firebreak 43, tandem type multi-stage preheater 44 and medium inlet and outlet 45 form.Wherein heat supply burner 42 is located at furnace
The side of body 41, tandem type multi-stage preheater 44 are located at the other side of furnace body 41.Firebreak 43 be located at heat supply burner 42 with connect
Among formula multistage preheater 44, the effect for preventing burner thermal-flame from directly washing away baking preheater is played in production.
In preheating furnace production, after high-temperature flue gas is generated by heat supply burner 42, first washes away and strike on firebreak 43, keeping off
Turbulent flow occurs in the front combustion chamber that wall with flues 43 is constituted with furnace body 41 to flee, then by the top of firebreak 43 interstitial channels into
Enter in tandem type multi-stage preheater 44, enters to pre- thermal medium from medium inlet and outlet 45 and flow out, with the high-temperature flue gas in preheater
It exchanges heat, participates in igniting production to be preheated to design temperature and then be introduced into igniting furnace system.
Furnace apparatus is preheated on existing sintering machine machine to have the following problems in long-term production:
1. flue gas and preheater heat-transfer effect are bad: since the hot fume that heat supply burner generates occurs just with firebreak first
Face collision, enters preheater by the interstitial channels above firebreak again after generating irregular turbulent flow, heat most in this way
By the wall absorption of firebreak and combustion chamber surrounding, the heat that preheater can finally absorb only accounts for 40-50%, heat-transfer effect
Difference, the thermal efficiency is not high；
2. the firebreak service life is short: since the heat of most of heat supply burner combustion is absorbed by firebreak, in long-term receipt height
Warm sweep of gases, baking, and in the case where the internal reinforcing apparatus without cooling, firebreak service life is generally partially short, and some is only given birth to
Producing half a year is to need replacing, and preheating furnace overall operation rate has also been seriously affected while causing operation cost to improve.
Utility model content
Problem to be solved in the utility model is that in view of the problems of the existing technology, providing one kind can enhanced heat exchange
Effect reduces the trimming frequency that stops production, improves preheating furnace on the sintering machine machine of overall operation rate.
In order to solve the above technical problems, the utility model proposes technical solution are as follows:
Preheating furnace on a kind of sintering machine machine, including furnace body, heat supply burner and preheater are equipped in the furnace body and keep off fiery current stabilization
Furnace interior is divided into combustion chamber and preheating chamber by wall, the fiery current stabilization wall of the gear, and the heat supply burner is installed in combustion chamber, described
Preheater is installed in preheating chamber, described to keep off fiery current stabilization wall equipped with multiple the steady of indoor high-temperature flue gas importing preheating chamber that burn
Discharge orifice.
As a further improvement of the above technical scheme:
The multiple current stabilization hole is uniformly distributed on keeping off fiery current stabilization wall.
The flame jet of the heat supply burner is towards the fiery current stabilization wall of the gear.
The preheater is tandem type multi-stage preheater.
Cooling pipe is equipped in the wall for keeping off fiery current stabilization wall.
Anchoring piece is installed on the cooling pipe, the anchoring piece buries in wall.
Compared with the prior art, the advantages of the utility model are:
Furnace interior is divided into combustion chamber and pre- using fiery current stabilization wall is kept off by preheating furnace on the sintering machine machine of the utility model
Hot cell, and multiple current stabilization holes are equipped on keeping off fiery current stabilization wall, when the preheating furnace of the structure works, fiery current stabilization wall is kept off by heat supply burner
The thermal-flame of generation blocks, and avoids preheater from directly being washed away and toast by flame, then by current stabilization hole steady ordered
The indoor high-temperature flue gas that will burn imports preheating chamber, and high-temperature flue gas and preheater high-efficient contact is made to exchange heat, since heat supply burner produces
Raw high-temperature flue gas is no longer to enter back into preheating chamber after generating irregular turbulent flow, and most heat will not be by firebreak and burning
The heat-transfer effect of the wall absorption of room surrounding, high-temperature flue gas and preheater is good, and heat exchange efficiency is higher；Firebreak and combustion chamber surrounding
Wall absorb heat and reduce, service life significantly improves, and can substantially reduce the repair rate and operation cost of preheating furnace, improves pre-
The overall operation efficiency of hot stove.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is preheating furnace schematic view of the mounting position on sintering machine machine.
Fig. 2 is the structural schematic diagram of preheating furnace on existing sintering machine machine.
Fig. 3 is the structural schematic diagram of preheating furnace embodiment on the utility model sintering machine machine.
Fig. 4 is the structural schematic diagram for keeping off fiery current stabilization wall on the utility model sintering machine machine in preheating furnace embodiment.
Fig. 5 to Fig. 7 is that the structure that preheating furnace keeps off fiery current stabilization wall in other embodiments on the utility model sintering machine machine is shown
It is intended to.
Fig. 8 is the structural schematic diagram of cooling pipe and anchoring piece in preheating furnace embodiment on the utility model sintering machine machine.
Marginal data:
1, ignition furnace；2, sintering pallet；4, preheating furnace；41, furnace body；411, combustion chamber；412, preheating chamber；42, heat supply
Burner；44, preheater；45, medium inlet and outlet；5, fiery current stabilization wall is kept off；51, wall；52, current stabilization hole；53, cooling pipe；54, anchor
Firmware.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to practical new herein
Type, which is done, more comprehensively, meticulously to be described, but the protection scope of the utility model is not limited to following specific embodiments.
Embodiment:
As shown in Figure 3 and Figure 4, preheating furnace on the sintering machine machine of the present embodiment, including furnace body 41, heat supply burner 42 and preheating
Device 44, interior be equipped with of furnace body 41 keep off fiery current stabilization wall 5, and combustion chamber 411 and preheating chamber will be divided into inside furnace body 41 by keeping off fire current stabilization wall 5
412, heat supply burner 42 is installed in combustion chamber 411, and towards fiery current stabilization wall 5 is kept off, preheater 44 fills the flame jet of heat supply burner 42
Set on preheating chamber 412, preheater 44 is tandem type multi-stage preheater, and is equipped with medium inlet and outlet 45, keeps off on fiery current stabilization wall 5 and setting
There are multiple high-temperature flue gas by combustion chamber 411 to import the current stabilization hole 52 of preheating chamber 412.It is pre- on the sintering machine machine of the utility model
Hot stove will be divided into combustion chamber 411 and preheating chamber 412 using fiery current stabilization wall 5 is kept off inside furnace body 41, and on keeping off fiery current stabilization wall 5
Equipped with multiple current stabilization holes 52, when the preheating furnace of the structure works, keeps off the thermal-flame that fiery current stabilization wall 5 generates heat supply burner 42 and keep off
Firmly, preheater 44 is avoided directly to be washed away and toast by flame, then by 52 steady ordered of current stabilization hole will be in combustion chamber 411
High-temperature flue gas import preheating chamber 412, so that high-temperature flue gas and 44 high-efficient contact of preheater is exchanged heat, generated due to heat supply burner 42
High-temperature flue gas is no longer to enter back into preheating chamber 412 after generating irregular turbulent flow, and most heat will not be by firebreak and burning
The heat-transfer effect of the wall absorption of 411 surrounding of room, high-temperature flue gas and preheater is good, and heat exchange efficiency is higher；Firebreak and combustion chamber
The walls of 411 surroundings, which absorbs heat, to be reduced, and service life significantly improves, can substantially reduce preheating furnace repair rate and operation at
This, improves the overall operation efficiency of preheating furnace.
In the present embodiment, multiple current stabilization holes 52 are uniformly distributed on keeping off fiery current stabilization wall 5, and current stabilization hole 52 is rectangular, and from upper
It is evenly arranged by row under；It keeps off in the wall 51 of fiery current stabilization wall 5 and is equipped with cooling pipe 53, cooling pipe 53 is from keeping off fiery current stabilization wall 5
Side enters, and the other side is stretched out, and the lateral duct of two side ducts of connection is equipped between each row's current stabilization hole 52, to have more
Uniform cooling effect, the optional water of cooling medium or gas, the present embodiment select water as cooling medium, and cooling pipe 53 is cold
But while wall 51, it can produce hot water and used for plant area, further improve the utilization rate of waste heat of preheating procedure；Such as Fig. 8
It is shown, Y type anchoring piece 54 is welded on cooling pipe 53, anchoring piece 54 is embedded in wall 51, and it is steady which can enhance gear fire
Flow the strong degree of the wall refractory material of wall 5.Keep off the water-cooled effect and cooling tube inside fiery current stabilization wall 5 by cooling pipe 53
Anchoring piece 54 on road 53, heat-resisting quantity and robustness are significantly enhanced, and service life has also obtained further extension.
As shown in Figures 5 to 7, in other embodiments, the form of expression in current stabilization hole 52 can be circle or other shapes,
Arrangement mode can be staggered, any ways such as annular array；According to the difference of the arrangement in current stabilization hole 52, cooling tube
Road 53, which can also have, different moves towards form.In addition, V-type or the anchoring piece of other models also can be selected in anchoring piece 54.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment.For those skilled in the art, obtained by under the premise of not departing from the technical concept of the utility model
Modifications and variations also should be regarded as the protection scope of the utility model.
Claims (6)
1. preheating furnace on a kind of sintering machine machine, including furnace body (41), heat supply burner (42) and preheater (44), it is characterised in that:
It is equipped in the furnace body (41) and keeps off fiery current stabilization wall (5), the fiery current stabilization wall (5) of the gear will be divided into combustion chamber inside furnace body (41)
(411) it is installed in combustion chamber (411) with preheating chamber (412), the heat supply burner (42), the preheater (44) is installed in preheating
Room (412), it is described to keep off fiery current stabilization wall (5) equipped with multiple high-temperature flue gas importings preheating chamber (412) by combustion chamber (411)
Current stabilization hole (52).
2. preheating furnace on sintering machine machine according to claim 1, it is characterised in that: the multiple current stabilization hole (52) is in gear fire
Current stabilization wall is uniformly distributed on (5).
3. preheating furnace on sintering machine machine according to claim 1, it is characterised in that: the flame of the heat supply burner (42) sprays
Mouthful towards gear fire current stabilization wall (5).
4. preheating furnace on sintering machine machine according to claim 1, it is characterised in that: the preheater (44) is that tandem is more
Grade preheater.
5. preheating furnace on sintering machine machine according to any one of claim 1 to 4, it is characterised in that: the fiery current stabilization of the gear
Cooling pipe (53) are equipped in the wall (51) of wall (5).
6. preheating furnace on sintering machine machine according to claim 5, it is characterised in that: be installed on the cooling pipe (53)
Anchoring piece (54), the anchoring piece (54) are embedded in wall (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821031038.5U CN208547256U (en) | 2018-06-29 | 2018-06-29 | Preheating furnace on sintering machine machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821031038.5U CN208547256U (en) | 2018-06-29 | 2018-06-29 | Preheating furnace on sintering machine machine |
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| Publication Number | Publication Date |
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| CN208547256U true CN208547256U (en) | 2019-02-26 |
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ID=65423691
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821031038.5U Active CN208547256U (en) | 2018-06-29 | 2018-06-29 | Preheating furnace on sintering machine machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759478A (en) * | 2018-06-29 | 2018-11-06 | 中冶长天国际工程有限责任公司 | Preheating furnace on sintering machine machine |
| CN110441347A (en) * | 2019-09-10 | 2019-11-12 | 应急管理部天津消防研究所 | A kind of load bearing vertical partition member fire resistance experimental rig |
-
2018
- 2018-06-29 CN CN201821031038.5U patent/CN208547256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759478A (en) * | 2018-06-29 | 2018-11-06 | 中冶长天国际工程有限责任公司 | Preheating furnace on sintering machine machine |
| CN110441347A (en) * | 2019-09-10 | 2019-11-12 | 应急管理部天津消防研究所 | A kind of load bearing vertical partition member fire resistance experimental rig |
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